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| author | Pierre Asselin <pa@panix.com> | 2023-04-19 00:48:34 -0400 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-04-21 14:27:31 +0200 |
| commit | 1b617bc93178912fa36f87a957c15d1f1708c299 (patch) | |
| tree | 60d30fa12b316ac456d883b31088e87da53b12b7 /include | |
| parent | c8687694bb1f5c48134f152f8c5c2e53483eb99d (diff) | |
| download | linux-stable-1b617bc93178912fa36f87a957c15d1f1708c299.tar.gz linux-stable-1b617bc93178912fa36f87a957c15d1f1708c299.tar.bz2 linux-stable-1b617bc93178912fa36f87a957c15d1f1708c299.zip | |
firmware/sysfb: Fix VESA format selection
Some legacy BIOSes report no reserved bits in their 32-bit rgb mode,
breaking the calculation of bits_per_pixel in commit f35cd3fa7729
("firmware/sysfb: Fix EFI/VESA format selection"). However they report
lfb_depth correctly for those modes. Keep the computation but
set bits_per_pixel to lfb_depth if the latter is larger.
v2 fixes the warnings from a max3() macro with arguments of different
types; split the bits_per_pixel assignment to avoid uglyfing the code
with too many typecasts.
v3 fixes space and formatting blips pointed out by Javier, and change
the bit_per_pixel assignment back to a single statement using two casts.
v4 go back to v2 and use max_t()
Signed-off-by: Pierre Asselin <pa@panix.com>
Fixes: f35cd3fa7729 ("firmware/sysfb: Fix EFI/VESA format selection")
Link: https://lore.kernel.org/r/4Psm6B6Lqkz1QXM@panix3.panix.com
Link: https://lore.kernel.org/r/20230412150225.3757223-1-javierm@redhat.com
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230419044834.10816-1-pa@panix.com
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions